#define _CRT_SECURE_NO_WARNINGS
#include"stdio.h"
int main() {
	int a = 0, b = 0;
	scanf("%d %d", &a, &b);
	int c = 0;
	/*c = a;
	a = b;
	b = c;*/
	/*c = a + b;
	b = c - b;
	a = c - a;*/
	a = a ^ b;
	b = a ^ b;//a^b^b=a^0=a
	a = a ^ b;//a^b^a=b^0=b
	printf("a=%d b=%d\n", a, b);
	return 0;
}